intelligen ttlock electronic thumbprint handle door lock

Intelligent Cerradura Tongtong Ttlock App Digital Biometric Thumbprint Handle Keyless Fingerprint finger print Front Door Lock Class C Anti-Theft Lock Cylinder: This high-security lock cylinder provides reliable protection against unauthorized access. Remote Temporary Password Function: When no one is at home, a temporary password can be generated remotely. This allows visitors to unlock the door and enter, enhancing convenience and security. Visitor Access Solution: In the event that someone comes to visit while the family is away, a random temporary password can be created using a mini-program. This password can then be sent to the guest, enabling them to unlock the door and wait inside. Power Supply System: The device is powered by 4 AAA Batteries, offering an ultra-long battery life of up to 365 days. This ensures long-term and reliable operation without frequent battery replacements. Low Battery Indication and Backup Power: When the battery level reaches 10% remaining, a promp…